CN220618344U

CN220618344U - Lifting type bridge pier overhauling platform

Info

Publication number: CN220618344U
Application number: CN202322206312.5U
Authority: CN
Inventors: 黄佳伟; 严文强; 陈欣怡
Original assignee: Wuxi Rigid Machinery Co ltd
Current assignee: Wuxi Rigid Machinery Co ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-03-19
Anticipated expiration: 2033-08-15

Abstract

The utility model discloses a lifting type bridge pier overhaul platform, and belongs to the technical field of bridge engineering. The lifting pier overhaul platform comprises a bottom frame and a mounting frame connected to the bottom frame, wherein the mounting frame is connected with a lifting machine and a safety lock, a working steel wire rope is arranged in the lifting machine in a penetrating manner, and a safety steel wire rope is arranged in the safety lock in a penetrating manner; the inner side of the underframe is provided with a hole matched with the outer surface of the pier, the position, close to the hole, of the inner side of the underframe is connected with a plurality of casters, and the position, close to the hole, of the upper side of the underframe is connected with a plurality of ejector rod devices. The utility model can be completely attached to the bridge pier for overhauling, has large overhauling area, can be lifted stably, can be adjusted manually to realize the bracing of the ejector rod device on the bridge pier, prevents shaking, meets the special operation with the requirement on stability, and has the advantages of simple structure, convenient installation and good economy.

Description

Lifting type bridge pier overhauling platform

Technical Field

The utility model relates to a lifting type bridge pier overhaul platform, and belongs to the technical field of bridge engineering.

Background

Along with the rapid development of the economy and the improvement of the bridge construction technology in China, the existing bridges are increasingly built in different periods. Because of the long-term use and environmental factors, a part of bridges have a large performance degradation phenomenon, so that comprehensive maintenance is needed to ensure the normal and driving safety of roads.

When the pier is overhauled at present, a common hoisting frame or a construction vehicle-mounted person surrounds the pier for comprehensive overhauling. However, the existing bridge pier overhauling and hoisting frame generally adopts hoisting equipment, the position of a fixed hoisting point is difficult, the disassembly is troublesome after the work is finished, and the cost is high. Moreover, the platform takes a cuboid as a majority, the cylindrical bridge pier is difficult to overhaul comprehensively, the platform is not provided with a protection device, the safety of operators cannot be guaranteed when the emergency is met, the stability of the platform is poor, and the platform is easy to collide with the bridge pier to damage.

Disclosure of Invention

The lifting type bridge pier overhauling platform is simple in integral structure, convenient to install, good in economical efficiency, capable of being completely attached to a bridge pier for overhauling, large in overhauling area, capable of effectively avoiding collision with the bridge pier when the platform is lifted, capable of enabling the platform to be lifted stably, safe and reliable.

The utility model is realized by the following technical scheme:

the utility model provides a lifting pier overhaul platform which comprises an underframe and a mounting frame connected to the underframe, wherein the mounting frame is connected with a lifting machine and a safety lock; the inner side of the underframe is provided with a hole matched with the outer surface of the pier, the position, close to the hole, of the inner side of the underframe is connected with a plurality of casters, and the position, close to the hole, of the upper side of the underframe is connected with a plurality of ejector rod devices.

In one embodiment, the ejector rod device comprises a fixed plate fixedly connected to the underframe and a first bolt penetrating through the fixed plate, and the first bolts on two sides of the fixed plate are respectively connected with a first nut and a second nut in a threaded mode.

In one embodiment, a periphery above the underframe is connected with a guardrail with a door, a side guardrail, a mounting rack and a connecting part guardrail, two sides of the mounting rack are respectively connected with the side guardrail and the connecting part guardrail, and the side guardrail is connected with the guardrail with the door.

In one embodiment, the door guard rail, the side guard rail, the mounting frame and the junction guard rail are all vertically connected to the chassis.

In one embodiment, the number of the mounting frames is four, both sides of each mounting frame are connected with side guardrails and junction guardrails, and each mounting frame is connected with a lifting machine and a safety lock.

In one embodiment, a first limit switch is arranged above the mounting frame.

In one embodiment, a second limit switch is arranged below the underframe.

In one embodiment, the mounting bracket is connected to an electronic load limiter.

In one embodiment, the mounting frame is provided with a first rope guiding sleeve and a second rope guiding sleeve, the mounting frame is connected with a working steel wire rope guiding wheel of the mounting frame, a rope guiding wheel of the steel wire rope and a rope guiding wheel of the mounting frame, and the rope guiding wheel is positioned above the hoisting machine; the mounting frame working steel wire rope guide pulley and the mounting frame safety steel wire rope guide pulley are positioned below the elevator.

In one embodiment, the outer side of the underframe is connected with a rope collector frame, the rope collector frame is located below the mounting frame, the rope collector frame is connected with a rope collector motor, a rope collector working steel wire rope guide wheel and a rope collector safety steel wire rope guide wheel, the rope collector motor is connected with a safety steel wire rope collecting disc and a working steel wire rope collecting disc in a driving mode, the rope collector working steel wire rope guide wheel is located above the working steel wire rope collecting disc, and the rope collector safety steel wire rope guide wheel is located above the safety steel wire rope collecting disc.

Compared with the prior art, the utility model has the beneficial effects that:

1. the inner side of the underframe of the pier overhaul platform is provided with the hole matched with the outer surface of the pier, the hole is matched with the outer surface of the pier, so that the underframe is matched with the radian of the outer surface of the pier to be overhauled, and the position, close to the hole, of the inner side of the underframe is connected with the truckles, so that the platform can be prevented from colliding with the pier when being lifted, and is lifted stably, and the overhauling area is increased.

2. The ejector rod device is used as a platform fixing device, can be manually adjusted to realize the bracing of the bridge pier, and prevents the platform from shaking due to the influence of external force in the overhaul process, so that the construction operation with requirements on stability is met, the stability of the platform is improved, and the self safety of operators during working is protected.

3. The first limit switch and the second limit switch are used as a platform protection device, the limit switch is triggered to be protected by touching the top or touching the bottom in the ascending and descending process of the platform, and the platform automatically stops ascending or descending to protect the platform and workers on the platform, so that the platform is safe and reliable.

4. The mounting frame is provided with the electronic load limiter, the platform can start an alarm when exceeding the rated load, and the platform automatically stops running, so that compared with the mechanical load limiter, the mounting frame is more sensitive, the error range is smaller, and the safety of staff can be ensured.

5. The utility model has simple integral structure, convenient installation and better economy.

Drawings

FIG. 1 is a perspective view of a pier inspection platform of the present utility model;

FIG. 2 is an enlarged view of a portion of a second limit switch of the present utility model;

FIG. 3 is a perspective view of the mounting bracket of the present utility model;

FIG. 4 is a rear view of the mount of the present utility model;

FIG. 5 is a perspective view of the rope retractor frame of the present utility model;

fig. 6 is a perspective view of the ejector pin device of the present utility model.

In the figure: 1. guard bar with door; 2. side guardrails; 3. a mounting frame; 4. a chassis; 5. a second limit switch; 6. a rope retractor frame; 7. a guardrail at the joint; 8. a hoist; 9. a safety lock; 10. a first limit switch; 11. a push rod device; 12. casters; 13. the installation frame works on a steel wire rope guide pulley; 14. an electronic load limiter; 15. a rope guiding wheel; 31. the first rope guide sleeve; 32. a second rope guide sleeve; 16. a mounting frame is used for guiding the rope wheel of the safety steel wire rope; 17. a rope collector motor; 18. a safety steel wire rope winding disc; 19. a working steel wire rope winding disc; 20. the rope collector works on a steel wire rope guiding wheel; 21. a rope collector safety steel wire rope guiding wheel; 111. a first bolt; 112. a first nut; 113. and a second nut.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all structures of the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the connection may be mechanical connection, electrical connection, direct connection, indirect connection via an intermediate medium, communication between two elements, or interaction relationship between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present utility model, the terms "upper," "lower," "left," "right," and the like are used for convenience of description and simplicity of operation based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1-6, a lifting pier maintenance platform in an embodiment includes a chassis 4 and a mounting frame 3 connected to the chassis 4, wherein the mounting frame 3 is connected with a lifter 8 and a safety lock 9, a working steel wire rope is threaded in the lifter 8, and a safety steel wire rope is threaded in the safety lock 9; holes matched with the outer surfaces of the piers are formed in the inner side of the underframe 4, a plurality of casters 12 are connected to the inner side of the underframe 4 close to the holes, and a plurality of ejector rod devices 11 are connected to the upper side of the underframe 4 close to the holes.

Alternatively, as shown in fig. 6, in one embodiment, the ejector device 11 includes a fixing plate (not shown in the drawing) fixedly connected to the chassis 4, and a first bolt 111 penetrating the fixing plate, where a first nut 112 and a second nut 113 are respectively screwed on the first bolts 111 on two sides of the fixing plate.

When the platform rises to the working plane, the wrench can be used for rotating the first bolt 111 to tightly support the pier wall surface, then the first nut 112 and the second nut 113 are rotated to fasten the first bolt 111, and the platform is prevented from being affected by external force to shake in the overhaul process, so that the construction operation with requirements on stability is met, the stability of the platform is improved, and the self safety of operators during working is protected. And, truckle 12 and pier face butt when the platform rises and descends, truckle 12 can roll along the pier face, prevents that the platform from bumping with the pier, makes the platform rise and descend process more steady.

It should be noted that the number of the ejector rod device 11 and the casters 12 may be adjusted according to the actual use requirement, which is not particularly limited.

Optionally, in one embodiment, a periphery above the underframe 4 is connected with a guardrail 1 with a door, a side guardrail 2, a mounting frame 3 and a connecting guardrail 7, two sides of the mounting frame 3 are respectively connected with the side guardrail 2 and the connecting guardrail 7, and the side guardrail 2 is connected with the guardrail 1 with the door; the guardrail 1 with the door comprises a door with hinge connection, and an operator enters and exits the platform from the guardrail 1 with the door. The guard rail is arranged to protect the safety of operators, and the installation frame 3 is arranged to install the components such as the lifting machine 8, the safety lock 9 and the like.

Optionally, the door guard bar 1, the side guard bar 2, the mounting frame 3 and the joint guard bar 7 are all vertically connected to the chassis 4.

Preferably, the number of the installation frames 3 is four, both sides of each installation frame 3 are connected with the side guardrails 2 and the connecting place guardrails 7, and each installation frame 3 is connected with the lifting machine 8 and the safety lock 9.

Optionally, in one embodiment, a first limit switch 10 is disposed above the mounting frame 3. When the first limit switch 10 touches the top, the protection is triggered, and the platform cannot continue to move upwards. The first limit switch 10 triggers the protection when touching the top in the process of lifting the platform, and the platform automatically stops lifting to protect the platform and the staff on the platform, so that the safety and the reliability are realized.

Optionally, in one embodiment, a second limit switch 5 is disposed below the chassis 4; when the second limit switch 5 touches the bottom, the protection is triggered, and the platform cannot continue to move downwards. And in the descending process of the platform, the second limit switch 5 triggers the protection when bottoming, the platform automatically stops descending to protect the platform and staff on the platform, and the safety and the reliability are realized.

Optionally, in one embodiment, the mounting frame 3 is connected to an electronic load limiter 14, when the weight borne by the platform exceeds the set rated load, the tensile force of the lifting machine 8 increases to trigger the electronic load limiter, the platform gives an alarm and cannot ascend or descend, and the platform automatically stops running. Compared with a mechanical load limiter, the electronic load limiter 14 is more sensitive, has smaller error range, can ensure the safety of staff, and further improves the safety of the platform.

Optionally, in one embodiment, the mounting frame 3 is provided with a first rope guiding sleeve 31 and a second rope guiding sleeve 32, the mounting frame 3 is connected with a mounting frame working steel wire rope guiding wheel 13, a rope guiding wheel 15 and a mounting frame safety steel wire rope guiding wheel 16, the rope guiding wheel 15 is positioned above the hoisting machine 8, and the rope guiding wheel 15 is used for guiding the working steel wire rope; the mounting frame working steel wire rope guide pulley 13 and the mounting frame safety steel wire rope guide pulley 16 are positioned below the hoisting machine 8.

Optionally, in one embodiment, a rope collector frame 6 is connected to the outer side of the chassis 4, the rope collector frame 6 is located below the mounting frame 3, the rope collector frame 6 is connected with a rope collector motor 17, a rope collector working steel wire rope guide wheel 20 and a rope collector safety steel wire rope guide wheel 21, the rope collector motor 17 is in driving connection with a safety steel wire rope collecting disc 18 and a working steel wire rope collecting disc 19, the rope collector working steel wire rope guide wheel 20 is located above the working steel wire rope collecting disc 19, and the rope collector safety steel wire rope guide wheel 21 is located above the safety steel wire rope collecting disc 18.

The safety steel wire rope passes through the safety lock 9, is led into the second rope guiding sleeve 32 through the first rope guiding sleeve 31, is led into the safety steel wire rope guiding wheel 21 of the rope collector through the safety steel wire rope guiding wheel 16 of the installation frame, and is finally wound into the safety steel wire rope collecting disc 18; the working steel wire rope passes through the rope guiding wheel 15 and enters a rope inlet of the elevator 8, then is guided into the mounting frame working steel wire rope guiding wheel 13 from a rope outlet of the elevator 8, and then passes through the rope collector working steel wire rope guiding wheel 20 to be wound into the working steel wire rope collecting disc 19. The working steel wire rope and the safety steel wire rope are led out from the outer side of the platform, so that the working of personnel is facilitated.

The working principle of the utility model is as follows: the whole platform is of a spliced structure and can be separated along two sides of a hole which is formed in the inner side of the underframe 4 and is matched with the outer surface of the pier. During actual installation, the whole platform is located the pier bottom, and two separated platforms dock and block the pier in the hole, because hole and pier surface looks adaptation for chassis 4 coincide with the radian of the pier surface that needs to overhaul, and be close to truckle 12 that hole department connects through chassis 4 inboard, can avoid the platform to collide with the pier when going up and down, make the platform steadily go up and down, and increase the maintenance area. The lifting machine 8 is a power mechanism and drives the whole platform to move along the working steel wire rope, the safety lock 9 is a safety mechanism and locks when the falling speed of the platform is too high, so that the whole platform is locked on the safety steel wire rope. The casters 12 are elastic mechanisms which ensure that the platform can always be abutted against the pier wall. The ejector rod device 11 is used for stabilizing the platform when necessary and is used for counteracting part of work and external force influences, such as impact force on the platform during drilling operation and impact force on the platform by wind power.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A lifting pier overhaul platform which is characterized in that: the lifting device comprises a chassis and a mounting frame connected to the chassis, wherein the mounting frame is connected with a lifting machine and a safety lock, a working steel wire rope is arranged in the lifting machine in a penetrating manner, and a safety steel wire rope is arranged in the safety lock in a penetrating manner; the inner side of the underframe is provided with a hole matched with the outer surface of the pier, the position, close to the hole, of the inner side of the underframe is connected with a plurality of casters, and the position, close to the hole, of the upper side of the underframe is connected with a plurality of ejector rod devices.

2. The elevating pier access platform according to claim 1, wherein: the ejector rod device comprises a fixed plate fixedly connected to the underframe and a first bolt penetrating through the fixed plate, and a first nut and a second nut are respectively connected to the first bolts on two sides of the fixed plate in a threaded mode.

3. The elevating pier access platform according to claim 1, wherein: the novel anti-theft safety device is characterized in that a periphery above the underframe is connected with a guardrail with a door, a side guardrail, a mounting rack and a connecting part guardrail, wherein two sides of the mounting rack are respectively connected with the side guardrail and the connecting part guardrail, and the side guardrail is connected with the guardrail with the door.

4. A lifting pier repair platform according to claim 3, characterized in that: the guardrail with the door, the side guardrail, the mounting rack and the connecting part guardrail are all vertically connected to the underframe.

5. A lifting pier repair platform according to claim 3, characterized in that: the number of the installation racks is four, the two sides of each installation rack are connected with side guardrails and junction guardrails, and each installation rack is connected with a lifting machine and a safety lock.

6. The elevating pier access platform according to claim 1, wherein: and a first limit switch is arranged above the mounting frame.

7. The elevating pier access platform according to claim 1, wherein: and a second limit switch is arranged below the underframe.

8. The elevating pier access platform according to claim 1, wherein: the mounting frame is connected with the electronic load limiter.

9. The elevating pier service platform according to any one of claims 1 to 8, wherein: the mounting frame is provided with a first rope guiding sleeve and a second rope guiding sleeve, and is connected with a working steel wire rope guiding wheel of the mounting frame, a rope guiding wheel and a safety steel wire rope guiding wheel of the mounting frame, and the rope guiding wheel is positioned above the hoisting machine; the mounting frame working steel wire rope guide pulley and the mounting frame safety steel wire rope guide pulley are positioned below the elevator.

10. The elevating pier service platform according to claim 9, wherein: the outer side of the underframe is connected with a rope collector frame, the rope collector frame is positioned below the mounting frame, the rope collector frame is connected with a rope collector motor, a rope collector working steel wire rope guide wheel and a rope collector safety steel wire rope guide wheel, the rope collector motor is connected with a safety steel wire rope collecting disc and a working steel wire rope collecting disc in a driving mode, the rope collector working steel wire rope guide wheel is positioned above the working steel wire rope collecting disc, and the rope collector safety steel wire rope guide wheel is positioned above the safety steel wire rope collecting disc.